Title
A bistable soft gripper with mechanically embedded sensing and actuation for fast closed-loop grasping.
Abstract
Soft robotic grippers are shown to be high effective for grasping unstructured objects with simple sensing and control strategies. However, they are still limited by their speed, sensing capabilities and actuation mechanism. Hence, their usage have been restricted in highly dynamic grasping tasks. This paper presents a soft robotic gripper with tunable bistable properties for sensor-less dynamic grasping. The bistable mechanism allows us to store arbitrarily large strain energy in the soft system which is then released upon contact. The mechanism also provides flexibility on the type of actuation mechanism as the grasping and sensing phase is completely passive. Theoretical background behind the mechanism is presented with finite element analysis to provide insights into design parameters. Finally, we experimentally demonstrate sensor-less dynamic grasping of an unknown object within 0.02 seconds, including the time to sense and actuate.
Year
DOI
Venue
2019
10.13140/RG.2.2.22701.13280
arXiv: Robotics
DocType
Volume
Citations 
Journal
abs/1902.04896
0
PageRank 
References 
Authors
0.34
7
5
Name
Order
Citations
PageRank
Thomas George1217.90
Syed Haider Abidi200.34
Matteo Cianchetti326030.00
Cecilia Laschi468199.92
Egidio Falotico58518.05